package com.test.servlet;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class set_contest extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//        this.getInitParameter()  //初始化参数
//        this.getServletConfig()  //Servlet配置
//        this.getServletContext()  //Servlet上下文

        ServletContext context = this.getServletContext();
        String  username = "scout";
        context.setAttribute("username",username);  //将一个数据保存在了ServletContext中, 键为“username” , 值为username
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doGet(req, resp);
    }
}
